The Paleogene is a geologic period that spans from about 66 million to 23 million years ago. It is part of the larger Cenozoic era, which is often referred to as the "Age of Mammals."
Answer: The Paleogene spans from about 66 million to 23 million years ago.
Answer: The Paleogene experienced a period of global warming known as the Paleocene-Eocene Thermal Maximum (PETM).
Answer: The Paleogene saw the diversification and expansion of mammalian species, including the emergence of early primates.
Answer: The Paleogene is associated with the formation of important geological features, such as the Atlantic Ocean and the Rocky Mountains.